Brembo 2S2.9009A1 GT Big Brake Kit Slotted Rotors Calipers - Rear 380x28mm 2-Piece 4-Piston BM4 Black

The Brembo 2S2.9009A1 GT Series Big Brake Kit delivers professional-grade braking performance for Mercedes-Benz G-Class vehicles including G55 AMG, G63 AMG, and G65 AMG models. This complete rear axle brake system combines Brembo's innovative GT|BM4 calipers with oversized two-piece rotors for superior heat dissipation, fade resistance, and consistent pedal feel under demanding conditions.

GT|BM4 Billet Monobloc Calipers:

The heart of this system is Brembo's revolutionary BM4 caliper, manufactured using an innovative 4D casting technology process. This advanced manufacturing technique allows Brembo to incorporate features typically found only in expensive billet or forged racing calipers. The monobloc design features completely internal fluid passages instead of external rigid pipe connections, creating a cleaner aesthetic while improving safety and resistance to damage. The concealed bleed screw integrates seamlessly into the caliper body, and the opposed 4-piston design ensures even brake force distribution and uniform pad wear. These black-finished calipers deliver exceptional stiffness and thermal management for both street and track use.

380x28mm Two-Piece Type 1 Slotted Rotors:

The kit includes 380mm diameter by 28mm thick two-piece floating rotors featuring Type 1 straight-slot design. The directionally vented rotors provide enhanced cooling capacity compared to stock brakes, while the eight machined slots continuously clean and refresh the pad surface, removing debris and gases for improved consistency and initial bite. The two-piece construction separates the aluminum hat from the iron rotor ring, reducing unsprung weight and allowing for better heat dissipation.

Complete Kit Includes:

• Pair of GT|BM4 4-piston monobloc calipers in black finish
• 380x28mm two-piece slotted rotors (complete rear axle set)
• High-performance brake pads optimized for street and track use
• Stainless steel braided brake lines for improved pedal feel
• CNC-machined billet caliper mounting brackets
• All necessary hardware for installation
• Pre-assembled and ready to install

Engineered specifically for trucks and SUVs requiring maximum braking performance, this Brembo GT system provides significant advantages over factory brakes including increased thermal capacity, improved modulation, reduced brake fade, and enhanced stopping power. The professional-grade components ensure reliable performance whether you're navigating mountain roads, towing heavy loads, or pushing your vehicle to its limits on the track.